Oil-dispensing pump



JAMES B. EASTES, F KONAWA, OKLAHOMA OIL-DISPENSING PUMP Application led .April 30,

Pump will be actuated by compressed air to force l or container. other object of the invention is to p vide a device of this char in construction, ecient in operation, durable, an one which small cost. Y

lVith these and other objects in view, this invention resides in the rangement of parts to be ly described, claimed, and illustrated in the accompanying rawng,.in which: igure 1 is a vertical sectional view through the device.

igure 2 is a 2`2 of Figure 1. f Referring to the drawing,

esignates a barrel or other 3 which is fitted a. pipe 3, which carries a' discharge ing a chec The pipe 7 and has lower end.

Mounted in the pipe 3 is an pipe 12, the lower end of which t casing and is threaded in the disc7: The pi e 12 has its upper end engaged with an elflbw`13 which has one branch extending throughlthe pipe 3 and connected to a casing 14.

novel features ofv th construction, formation, combination and arereinafter more sectional view on the line tl wardly, thus f upon the spring 16 air conducting b extends into d 1929. serialv No. 359,292.

A piston 15 is slidable in the tube secured thereto the lower end 'of spring 16, the upper end of which is fixed in the elbow 13. T is spring serves to normally hold the piston 15 in its elevated position.

A valve 17 is slidable in th 9 and has the coil he valve 17 60 t a portion thereof exhas a Ahead 21 operation. A coil acit so that upon each down 15 one quart of oil will tube 9, in this instance, has a cap o one quart of oil stroke ofthe piston e dispensed.

riefiy, the operation is as follows: ssuming that the tube 9 is filled with oil, epressed until the port 18 regisie valve is d ters with the elbow 13, whereupon the air ownwa'rdly through under pressure will passd the pipe 12 and force the piston 15 downuring tube, t

After vt is op- From the foregoing,

it is thought that the construction,

operation and many advantages of the herein described invention will be a parent to those skilled in the art, without Jfurther description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any ot the advantages of the invention.

What is claimed is'.

1. A pump including a casing having an upwardly opening valve at its lower end, a discharge pipe connected with the casing an provided with a downwardly opening valve, a tube within the casing and having an enveloping space forming a chamber whic is in communication with the said discharge ipe, a piston in the tube, an air pipe in the discharge pipe and spaced therefrom an connected with the upper end of the said tube, means normally holding the piston elevated, a pressure supplying pipe connected with said air pipe, and a manually operable valve for controlling the supply of pressure to the piston and permitting a discharge oi the 2E spent pressure when the piston is returning to normal position after being actuated.

2. A pump including a casing having an upward y opening valve at its lower end, a discharge pipe connected with the casing an provided with a downwardly opening valve, a tube within the casing and having an en veloping space forming a chamber, a disc in the upper portion o the casing and closing the tu )e and formed with openings establishing communication between the said chamber and discharge pipe, an air pipe in the disch-arge pipe spaced therefrom and connected with the disc and said'tube, a piston in the tube, means normally holding the pis- L0 ton elevated, a pressure supplying pipe connected with the air pipe, and a manually operable valve for controlling the iiow of pressure to the air pipe and the discharge of the spent pressure theretrom.

3. A pump including a casing having AYan upwardly lopening valve at its lower end, a discharge pipe connected with the casing and provided with a downwardly opening va ve, a disc in the upper portion of the casing having openings in its outer portion, a tube within the casing depending from the said disc and having an enveloping chamber, an air ipe within the discharge pipe and connecte with the said disc and opening into the tube, a piston in the tube, a coil spring in the air pipe and connected with the piston to normally hold it elevated, a pressure supplying i e connected with the air pipe, and a manua ly operable valve or controlling the flow 5 of pressure to the air pipe and the discharge of the spent pressure therefrom.

In testimony whereof I ax my signature.

JAMES B. EASTES. [n a] 

